Sponging :  disallowed (Read-only view)
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http://purl.org/goodrelations/v1#ProductOrServicesSomeInstancesPlaceholder

A placeholder instance for unknown instances of a mass-produced commodity. This is used as a computationally cheap work-around for such instances that are not individually exposed on the Web but just stated to exist (i.e., which are existentially quantified). Example: An instance of this class can represent an anonymous set of green Siemens1234 phones. It is different from the ProductOrServiceModel Siemens1234, since this refers to the make and model, and it is different from a particular instance of this make and model (e.g. my individual phone) since the latter can be sold only once.